1057257146 has 16 divisors (see below), whose sum is σ = 1805277888. Its totient is φ = 459676800.

The previous prime is 1057257083. The next prime is 1057257181. The reversal of 1057257146 is 6417527501.

It is a super-2 number, since 2×1057257146² = 2235585345536130632, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044215 + ... + 1045226.

It is an arithmetic number, because the mean of its divisors is an integer number (112829868).

Almost surely, 2^1057257146 is an apocalyptic number.

1057257146 is a deficient number, since it is larger than the sum of its proper divisors (748020742).

1057257146 is a wasteful number, since it uses less digits than its factorization.

1057257146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089477.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 1057257146 is about 32515.4908620491. The cubic root of 1057257146 is about 1018.7326133708.

The spelling of 1057257146 in words is "one billion, fifty-seven million, two hundred fifty-seven thousand, one hundred forty-six".